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Analyse de chemin de moindre coût / Analyse coût-distance×Modèles de localisation-affectation×
DomaineAnalyse spatialeAnalyse spatiale
FamilleProcess / pipelineProcess / pipeline
Année d'origine19941963
Auteur d'origineEdsger Dijkstra (shortest path); GIS cost-surface adaptationLeon Cooper; S. L. Hakimi
TypeRaster cost-surface routingSpatial facility-location optimization
Source fondatriceDijkstra, E. W. (1959). A note on two problems in connexion with graphs. Numerische Mathematik, 1(1), 269–271. DOI ↗Cooper, L. (1963). Location-allocation problems. Operations Research, 11(3), 331–343. DOI ↗
Aliascost-distance analysis, accumulated cost surface, least-cost corridor, en düşük maliyetli yolfacility location, p-median problem, maximal covering location problem, yer-tahsis modelleri
Apparentées34
RésuméLeast-cost path analysis finds the route between two locations that minimizes accumulated travel cost across a landscape, rather than minimizing straight-line distance. By encoding terrain, slope, land cover, and other frictions into a cost surface and accumulating cost outward from a source, it identifies optimal corridors for roads, pipelines, trails, power lines, and wildlife movement — a core raster-GIS technique built on Dijkstra's shortest-path logic.Location-allocation models decide where to place a set of facilities and simultaneously assign demand points to them so as to optimize an objective such as total travel cost, worst-case distance, or population covered. Rooted in the operations-research work of Cooper (1963) and Hakimi (1964) and central to network GIS, they answer questions like where to site warehouses, hospitals, fire stations, or schools to best serve a spatially distributed population.
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ScholarGateComparer des méthodes: Least-Cost Path · Location-Allocation. Consulté le 2026-06-15 sur https://scholargate.app/fr/compare